Sm3+-doped La2CaB10O19(Sm:LCB) crystal with size of 40 x 25 x 15 mm(3) has been grown by the top-seeded solution growth (TSSG) method. The absorption and fluorescence spectra of Sm:LCB were measured at room temperature, and the fundamental spectral parameters, including transition probability A, fluorescence branch ratio beta(c), radioactive lifetime tau(r), emission cross-sections sigma(em) and intensity parameters Omega(t(2,4,6)), have been calculated by applying the Judd-Ofelt theory. In Sm:LCB crystal, a strong 599 nm orange fluorescence emitting peak was observed under 410 nm excitation, which may be applied in the medicine and biological detection. Sm:LCB crystal may be a promising orange laser material. (C) 2014 Elsevier B.V. All rights reserved.